CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 1. Profile of Selected 1990 and 2000 Characteristics
Geographic Area: Maryland
Subject	1990 Census		Census 2000		Change 1990 to 2000
	Number	Percent	Number	Percent	Number	Percent
POPULATION
Total population	4,781,468	100.0	5,296,486	100.0	515,018	10.8
In households	4,668,196	97.6	5,162,381	97.5	494,185	10.6
In group quarters	113,272	2.4	134,105	2.5	20,833	18.4
HOUSEHOLD SIZE
Total households	1,749,342	100.0	1,981,795	100.0	232,453	13.3
1-person household	391,814	22.4	494,959	25.0	103,145	26.3
2-person household	548,326	31.3	627,558	31.7	79,232	14.4
3-person household	339,910	19.4	349,932	17.7	10,022	2.9
4-person household	282,572	16.2	297,941	15.0	15,369	5.4
5-or-more-person household	186,720	10.7	211,405	10.7	24,685	13.2
Mean number of persons per household	2.67	(X)	2.60	(X)	-0.06	(X)
VEHICLES AVAILABLE1
Total households	1,749,342	100.0	1,981,795	100.0	232,453	13.3
No vehicle available	210,741	12.0	219,237	11.1	8,496	4.0
1 vehicle available	548,604	31.4	661,007	33.4	112,403	20.5
2 vehicles available	664,602	38.0	750,561	37.9	85,959	12.9
3 vehicles available	232,604	13.3	257,329	13.0	24,725	10.6
4 vehicles available	68,685	3.9	67,907	3.4	-778	-1.1
5 or more vehicles available	24,106	1.4	25,754	1.3	1,648	6.8
Mean vehicles per household	1.70	(X)	1.69	(X)	-0.02	(X)
WORKERS BY SEX1
Workers 16 years and over	2,482,462	100.0	2,591,670	100.0	109,208	4.4
Male	1,322,251	53.3	1,331,440	51.4	9,189	0.7
Female	1,160,211	46.7	1,260,230	48.6	100,019	8.6
MEANS OF TRANSPORTATION TO WORK
Workers 16 years and over	2,482,462	100.0	2,591,670	100.0	109,208	4.4
Drove alone	1,732,837	69.8	1,910,917	73.7	178,080	10.3
Carpooled	376,449	15.2	320,992	12.4	-55,457	-14.7
Public transportation (including taxicab)	202,169	8.1	187,246	7.2	-14,923	-7.4
Bicycle or walked	88,132	3.6	69,695	2.7	-18,437	-20.9
Motorcycle or other means	18,040	0.7	16,117	0.6	-1,923	-10.7
Worked at home	64,835	2.6	86,703	3.3	21,868	33.7
TRAVEL TIME TO WORK
Workers who did not work at home	2,417,627	100.0	2,504,967	100.0	87,340	3.6
Less than 5 minutes	54,263	2.2	47,843	1.9	-6,420	-11.8
5 to 9 minutes	186,393	7.7	169,884	6.8	-16,509	-8.9
10 to 14 minutes	287,738	11.9	271,204	10.8	-16,534	-5.7
15 to 19 minutes	338,961	14.0	320,679	12.8	-18,282	-5.4
20 to 29 minutes	502,979	20.8	496,154	19.8	-6,825	-1.4
30 to 44 minutes	571,823	23.7	590,856	23.6	19,033	3.3
45 or more minutes	475,470	19.7	608,347	24.3	132,877	27.9
Mean travel time to work (minutes)	27.0	(X)	31.2	(X)	4.1	(X)
TIME LEAVING HOME TO GO TO WORK
Workers who did not work at home	2,417,627	100.0	2,504,967	100.0	87,340	3.6
5:00 a.m. to 6:59 a.m.	691,921	28.6	705,645	28.2	13,724	2.0
7:00 a.m. to 7:59 a.m.	752,889	31.1	757,779	30.3	4,890	0.6
8:00 a.m. to 8:59 a.m.	454,503	18.8	454,398	18.1	-105	[ <0 ]
9:00 a.m. to 9:59 a.m.	127,892	5.3	151,747	6.1	23,855	18.7
10:00 a.m. to 11:59 a.m.	65,438	2.7	82,478	3.3	17,040	26.0
12:00 p.m. to 11:59 p.m.	270,671	11.2	275,359	11.0	4,688	1.7
12:00 a.m. to 4:59 a.m.	54,313	2.2	77,561	3.1	23,248	42.8
1See the entry for this item in the Technical Notes in the root directory or state subdirectories (filename: tech_notes.txt). <0Negative value is too near zero to display. (X)Not applicable. Source:U.S. Census Bureau. Census of Population and Housing, 1990 and 2000 long-form (sample) data.

CENSUS TRANSPORTATION PLANNING PACKAGE (CTPP 2000) Table 2. Profile of Selected 2000 Characteristics
Geographic Area: Maryland
Subject	Census 2000
	Number	Percent
POPULATION BY AGE
Total population	5,296,486	100.0
Under 16 years	1,210,544	22.9
16 to 20 years	344,201	6.5
21 to 24 years	246,146	4.6
25 to 44 years	1,674,507	31.6
45 to 64 years	1,223,084	23.1
65 years and over	598,004	11.3
Mean age (years)	35.8	(X)
HOUSEHOLD INCOME IN 19991
Total households	1,981,795	100.0
Less than $15,000	220,527	11.1
$15,000 to 19,999	88,739	4.5
$20,000 to 24,999	99,365	5.0
$25,000 to 49,999	518,122	26.1
$50,000 to 74,999	427,180	21.6
$75,000 to 99,999	268,558	13.6
$100,000 or more	359,304	18.1
Mean household income (dollars)	67,454	(X)
Median household income (dollars)	52,868	(X)
Household Size by Vehicles Available1
Household Size		Mean vehicles per household	Vehicles available
			Total households	No vehicle	1 vehicle	2 vehicles	3 vehicles	4 or more vehicles
Total households		1.69	1,981,795	219,235	661,005	750,560	257,330	93,660
	Row percent	(X)	100.0	11.1	33.4	37.9	13.0	4.7
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
1-person household		0.94	494,960	107,875	325,680	50,735	7,660	3,005
	Row percent	(X)	100.0	21.8	65.8	10.3	1.5	0.6
	Column percent	(X)	25.0	49.2	49.3	6.8	3.0	3.2
2-person household		1.74	627,560	48,380	171,505	322,870	69,240	15,565
	Row percent	(X)	100.0	7.7	27.3	51.4	11.0	2.5
	Column percent	(X)	31.7	22.1	25.9	43.0	26.9	16.6
3-person household		1.97	349,930	26,660	79,200	147,185	76,465	20,420
	Row percent	(X)	100.0	7.6	22.6	42.1	21.9	5.8
	Column percent	(X)	17.7	12.2	12.0	19.6	29.7	21.8
4-or-more-person household		2.15	509,345	36,320	84,620	229,775	103,965	54,665
	Row percent	(X)	100.0	7.1	16.6	45.1	20.4	10.7
	Column percent	(X)	25.7	16.6	12.8	30.6	40.4	58.4
Means of Transportation to Work by Travel Time to Work1
Means of Transportation		Mean travel time to work (minutes)	Travel time to work
			Workers who did not work at home	Less than 10 minutes	10 to 19 minutes	20 to 29 minutes	30 to 44 minutes	45 or more minutes
Workers who did not work at home		31.2	2,504,965	217,725	591,885	496,155	590,855	608,345
	Row percent	(X)	100.0	8.7	23.6	19.8	23.6	24.3
	Column percent	(X)	100.0	100.0	100.0	100.0	100.0	100.0
Drove alone		29.3	1,910,915	159,730	483,530	411,685	459,465	396,505
	Row percent	(X)	100.0	8.4	25.3	21.5	24.0	20.7
	Column percent	(X)	76.3	73.4	81.7	83.0	77.8	65.2
Carpooled		33.9	320,990	22,090	67,525	58,415	79,630	93,330
	Row percent	(X)	100.0	6.9	21.0	18.2	24.8	29.1
	Column percent	(X)	12.8	10.1	11.4	11.8	13.5	15.3
Public transportation (including taxicab)		51.4	187,245	2,785	12,320	16,265	44,620	111,260
	Row percent	(X)	100.0	1.5	6.6	8.7	23.8	59.4
	Column percent	(X)	7.5	1.3	2.1	3.3	7.6	18.3
Bicycle or walked		13.1	69,695	30,905	24,450	7,295	4,390	2,655
	Row percent	(X)	100.0	44.3	35.1	10.5	6.3	3.8
	Column percent	(X)	2.8	14.2	4.1	1.5	0.7	0.4
Motorcycle or other means		40.7	16,115	2,220	4,060	2,490	2,750	4,595
	Row percent	(X)	100.0	13.8	25.2	15.5	17.1	28.5
	Column percent	(X)	0.6	1.0	0.7	0.5	0.5	0.8
1See the entry for this item in the Technical Notes in the root directory or state subdirectories (filename: tech_notes.txt). (X)Not applicable. Source:U.S. Census Bureau. Census of Population and Housing, 1990 and 2000 long-form (sample) data.